2766656372 has 6 divisors (see below), whose sum is σ = 4841648658. Its totient is φ = 1383328184.

The previous prime is 2766656359. The next prime is 2766656383. The reversal of 2766656372 is 2736566672.

It can be written as a sum of positive squares in only one way, i.e., 2757930256 + 8726116 = 52516^2 + 2954^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2766656372.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345832043 + ... + 345832050.

It is an arithmetic number, because the mean of its divisors is an integer number (806941443).

Almost surely, 2^2766656372 is an apocalyptic number.

It is an amenable number.

2766656372 is a deficient number, since it is larger than the sum of its proper divisors (2074992286).

2766656372 is a wasteful number, since it uses less digits than its factorization.

2766656372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691664097 (or 691664095 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 50.

The square root of 2766656372 is about 52599.0149337419. The cubic root of 2766656372 is about 1403.8425681763.

The spelling of 2766656372 in words is "two billion, seven hundred sixty-six million, six hundred fifty-six thousand, three hundred seventy-two".